19448020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{839}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 24299180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 839, 1159, 1220, 1678, 2318, 3356, 4195, 4636, 5795, 8390, 11590, 15941, 16780, 23180, 31882, 51179, 63764, 79705, 102358, 159410, 204716, 255895, 318820, 511790, 972401, 1023580, 1944802, 3889604, 4862005, 9724010, 19448020]

約数ペア:

[(1, 19448020), (2, 9724010), (4, 4862005), (5, 3889604), (10, 1944802), (19, 1023580), (20, 972401), (38, 511790), (61, 318820), (76, 255895), (95, 204716), (122, 159410), (190, 102358), (244, 79705), (305, 63764), (380, 51179), (610, 31882), (839, 23180), (1159, 16780), (1220, 15941), (1678, 11590), (2318, 8390), (3356, 5795), (4195, 4636)]